Size Identification on all SDWS screw heads

such as wood-to-wood

7/8-9 x 2 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (15)

Free Spider Drive bit in every package

1/2-20 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) 7/16-20 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA Size Identification on all SDWS1 2 20 x 2 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on